Accurate oil pressure acquisition method-based internal abnormal judgment device of oil-immersed current transformer

Abstract

The invention relates to the technical field of real-time monitoring of an oil-immersed current transformer, in particular to an accurate oil pressure acquisition method-based internal abnormal judgment device of the oil-immersed current transformer. The accurate oil pressure acquisition method-based internal abnormal judgment device comprises a current transformer and also comprises three parts of an equipment end, a wireless acquisition unit and an upper computer end which are connected, wherein the equipment end is arranged at an oil discharging valve of the current transformer, the wireless acquisition unit is locally arranged on a current transformer framework and is used for acquiring and processing a temperature and pressure signal of the equipment end, the upper computer end is arranged in a master control chamber, and the equipment end employs a zigbee network to upload the temperature and pressure signal to the upper computer end. The accurate oil pressure acquisition method-based internal abnormal adjustment device has the characteristics of simple structure and design reasonableness and is convenient to operate, real-time acquisition of oil pressure and temperature canbe achieved, accurate acquisition of the current transformer and pressure is achieved, and the running state of the current transformer can be judged by a correction algorithm and by upper computer analysis. The device has the characteristics of high efficiency, accuracy and wide applicability and is very suitable for great promotion and application in power industry.

Description

technical field [0001] The invention relates to the technical field of real-time monitoring of oil-immersed current transformers, in particular to an internal abnormality judgment device of an oil-immersed current transformer based on a precise oil pressure acquisition method. Background technique [0002] In recent years, oil-immersed current transformers have frequent failures. Due to their compact internal structure, the failures develop rapidly and are not easy to find, which seriously threatens the security of the power grid. At present, the status of oil-immersed current transformers is mainly judged through inspection of oil level changes, routine tests and oil chromatography detection. However, due to the small amount of internal oil, the chromatographic cycle is usually 3-6 years; the routine test cycle is usually 3 years and needs to be combined with a power outage plan; the traditional inspection makes the operation and maintenance personnel have a large inspectio...

AI Technical Summary

Problems solved by technology

However, due to the small amount of internal oil, the chromatographic cycle is usually 3-6 years; the routine test cycle is usually 3 years and must be combined with the power outage plan; the traditional inspection makes the inspection workload of the operation and maintenance personnel heavy, and has higher requirements for inspection quality

At present, there is a lack of real-time monitoring methods for oil-immersed current transformer faults.

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